TY  - BOOK
AU  - CROOK, John Hurrell
TI  - Social behaviour in birds and mammals ; essays on the social ethology of animals and man
U1  - 591.5 C74S 
PY  - 1970///
PB  - London
KW  - ANIMALS, HABITS & BEHAVIOUR OF
KW  - BIRDS -- BEHAVIOUR
KW  - MAMMALS
ER  -